Vuetify 文本字段边框缺失

I'm trying to implement Veutify's text field

This is what it looks like for me right now:

And this is what it looks like when the text field is in focus:

These are my imports in main.js

import Vue from 'vue';
import Vuetify from 'vuetify';
Vue.use(Vuetify);

Am I missing an import or something?

解决方案

I ran in the same issue, you need to wrap your application in a <v-app>.

The reason is that the border's color depends on the theme you're using. If you try to inspect the documentation you will see that the border's rule is something like .application--light .input-group .input-group__details: application--light is indeed a class added by v-app.